Get Previous and Next Sunday from another time zone - php

I need a script that will return the next sunday and previous saturday from the date . I know how i can return that value from the current date
$saturday = date('Y-m-d H:i:s',strtotime( "next saturday" ));
$sunday = date('Y-m-d H:i:s',strtotime("previous sunday"));
But i have user and his timezone is different say 'Europe/Zurich'(different timezones will be used)
I need to get his previous sunday's date and next saturday.
I wrote a script like this . But i am not sure about the accuracy of the script since it is timezone related task.Please help me to fix this.
$actual_server_time = new DateTime;
$actual_server_time->setTimeZone(new DateTimeZone('Europe/Zurich'));
$converted_server_date_time = $actual_server_time->format('Y-m-d H:i:s');
$actual_server_time->modify('last Sunday');
$actual_server_time->format('Y-m-d H:i:s');

You can add the timezone in strtotime:
<?php strtotime("previous sunday GMT+1");
DEMO

Related

PHP convert the day date with the time

I am working on my php script to set up the date with the time. I need some help with convert the day date to the current day and next day date, example: my current time is 15:27 and my current date is 27-11-2019 so when I have the string for the variable get_time1 is 06:00:00, I want to convert it to 28-11-2019 06:00:00. When I have the variable get_time2 that have the time which it is 23:00:00 as my current time is before 23:00:00 so i want to convert the date with the current date with the time to 27-11-2019 23:00:00.
Code:
<?php
$get_time1 = '06:00:00';
$get_time2 = '23:00:00';
date_default_timezone_set('Europe/London');
$Date = date('Y-m-d');
$time = date('H:i:s');
?>
Can you please show me an example how I can set up the day date with the time 06:00:00 and 23:00:00 as if the time 06:00:00 is after 12am to set up the next day date and if the time 23:00:00 is before 12am then set up the time with the current date?
Thank you.
This just creates a DateTime object from the time (which will default it to todays date) and if this is less than the current date and time, it adds 1 day...
$date = DateTime::createFromFormat("H:i:s", $get_time2);
if ( $date < new DateTime() ) {
$date->modify("+1 day");
}
which gives
2019-11-27 23:00:00
and for $get_time1...
2019-11-28 06:00:00
If you use a DateTime that will allow you to do date arithmetic.
$now = new DateTime();
$tomorrow = $now->modify("+1 day");
You can also use strtotime to get a unix timestamp as explained in this answer.
$tomorrow = strtotime('+1 day');
maybe this will do?
$offset = timezone_offset_get( timezone_open( "Europe/London" ), new \DateTime() );
echo 'in London' . gmdate('d-m-Y H:i:s', date( "U" )+$offset);
echo 'current location: ' . date('d-m-Y H:i:s', date( "U" ));

Php get timestamp of previous day midnight

Am trying to get the timestamp of previous day midnight
That is if today is thursday , get the timestamp of wednesday midnight.
How do i go about this
i have tried
$lastdaymidnight = strtotime() //am stuck
What do i need to add to strtotime?
try this
$date = new DateTime();
$date->setTimestamp(strtotime('yesterday midnight'));
One liner:
$date = new DateTime('yesterday midnight');

php add x weeks to a date and then find the next given day

I can add x week to my date
//$ultima_azione <--- 2015/07/15
//$data['intervallo'] <---- 5
$mydate = date("Y-m-d",strtotime($ultima_azione." +".$data['intervallo']." weeks"));
now how can i give a day starting from that week
example:
//$mydate + "next Monday" -----> final date
and this ve to work like, if today is Monday and i add weeks to jump to an other Monday and then i select the next Monday the week don't ve to change
The simplest way would be to use strtotime. It can do date calculations based on a textual representation of the delta:
$mydate = strtotime('+3 weeks');
It also accepts a second parameter, which is a timestamp to start from when doing the calculation, so after you get the offset in weeks, you can pass the new date to a second calculation:
// Get three weeks from 'now' (no explicit time given)
$mydate = strtotime('+3 weeks');
// Get the Monday after that.
$mydate = strtotime('next Monday', $mydate);
See strtotime documentation for more examples of notations that you can use.
I would highly recommend using PHP's built-in DateTime class for any date and time logic. It's a much better API than the older date and time functions and creates much cleaner and easier to read code.
For example:
// Current date and number of weeks to add
$date = '2015/07/15';
$weeks = 3;
// Create and modify the date.
$dateTime = DateTime::createFromFormat('Y/m/d', $date);
$dateTime->add(DateInterval::createFromDateString($weeks . ' weeks'));
$dateTime->modify('next monday');
// Output the new date.
echo $dateTime->format('Y-m-d');
References:
DateTime.
DateTime::createFromFormat
DateTime::add
DateTime::modify
DateInterval::createFromDateString
DateTime::format
Are you looking for something like this?
$today = time();
$weeks = 2;
// timestamp 2 weeks from now
$futureWeeks = strtotime("+ ".$weeks." weeks");
// the next monday after the timestamp date
$futureMonday = strtotime("next monday",$futureWeeks);
echo date("Y-m-d", $futureMonday);
// or in one line
echo date("Y-m-d", strtotime("next monday", strtotime("+ ".$weeks." weeks")));
PHP is using an unix timestamp for date calculations. Functions as date() and strtotime() using a timestamp as an optional second parameter. This is used a reference for formatting and calculations. If no timestamp is passed to the function the current timestamp is used (time()).
I have the answer here. This will show the next wednesday every 2 weeks and the first date to start from would be the 10th.
I have also added in an estimated delivery which would be 6 weeks after that date.
We will be placing our next order for this on:
<?php
$date = '2020/05/26';
$weeks = 2;
$dateTime = DateTime::createFromFormat('Y/m/d', $date);
$dateTime->add(DateInterval::createFromDateString($weeks . ' weeks'));
$dateTime->modify('wednesday');
echo $dateTime->format('d/m/Y');
?>
Expected delivery for the next order will be:
<?php
$date = '2020/05/26';
$weeks = 2;
$dateTime = DateTime::createFromFormat('Y/m/d', $date);
$dateTime->add(DateInterval::createFromDateString($weeks . ' weeks'));
$dateTime->modify('+42 days next wednesday');
echo $dateTime->format('d/m/Y');
?>
If anyone can confirm this is correct that would be great.

Allow entries only every 7 days. (On Every Monday)

I have an entry form that allows users to enter a competition.
We run this competition every monday 12.00 midnight. Rule is if the user has entered this week competition, they need to wait for next Monday to be allowed to enter competition again.
date_default_timezone_set('GMT');
$today = date("m.d.y H:i:s");
echo strtotime("last Monday");
This is what has been done now I know it's nothing important but I have two questions:
Why does strtotime("last Monday"); return 1398643200?
How do I do the calculation? (Entries all have DATETIME field.)
1398643200 is the UNIX timestamp for the Last Monday, and that is what strtotime("") usually does. It returns a timestamp. Note: You will get an other Timestamp for Last Monday every week.
You can refer more details about strtotime here.
You just need to add 7 days to your time. Please see the sample code below
$your_date = "4/28/2014";
$your_date = strtotime($your_date);
$your_date = strtotime("+7 day", $your_date);
echo date('M d, Y', $your_date);
After validating if the user join the competition, you need to give the user a date of the next monday right? Try using this
echo date("M d, Y", strtotime('next monday'));
try this :
//get today's timestamp
$date_now = date_create("today");
//get past timestamp that you want to compare with
$log_date = date_create($VALUE FROM YOUR DB LAST LOG OR COMPETITION ENTRY);
//calculate date difference
$difference = date_diff($log_date,$date_now);
$int = intval($difference->format('%a'));
if($int > 6) {
//6 days as user can enter again on the 7th day
//let me in;
}else{
//do not let me in;
}
You can refer date_create and date_diff on official documentation for more information.

Create Unix Time Stamp of next day at 10am

Hi Suppose I have a timestamp of "2005-10-16 13:05:41".
How would I go about creating a variable that will have a unixtime of the next time it becomes 10am from that initial point?
Would it be something like this?
$timestamp = "2005-10-16 13:05:41";
$tenAMTime = strtotime("next 10am", $timestamp);
I am guessing there is some string I can use to do this? Like "next thursday" example in the PHP documentation.
You nearly had it...
$tomorrowAt10Am = strtotime('+1 day 10:00:00', $timestamp);
Edit:
This was based on the title of your question, for the timestamp of 10am the next day. If you want to output 10am the same day for any times before 10am then you'll want to add some extra logic, as thatidiotguy suggested.
Edit2:
For some reason it won't work if you put all the logic in the same strtotime method, so I made a simple function. You could easily put this into a single line, but I left it as 2 to make it clearer:
$time1 = strtotime('-2 days 09:59:59');
$time2 = strtotime('-2 days 10:00:01');
function next_10am($time)
{
$temp = strtotime('+1 day -10 hours', $time);
return strtotime('10:00', $temp);
}
echo next_10am($time1); // Outputs: 2012-09-08 10:00:00
echo next_10am($time2); // Outputs: 2012-09-09 10:00:00
There is no way for strtotime to know whether or not 10am has already passed, so this is how I would do it:
$timestamp = strtotime("2005-10-16 13:05:41");
// Get current hour and if it is > 10 add a day
if (date('G',$timestamp) >= 10) {
$tenAMTime = strtotime("+1 day 10am", $timestamp);
}
else {
$tenAMTime = strtotime("10am", $timestamp);
}
echo date('r',$tenAMTime); // Comment this out if you want

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